I am a 44 year old white female. A month ago a noticed a lump under my arm. My doctor had me go for an u/s and mammogram. The Radiologist said that she wanted to do an aspiration biopsy on the lump. She thinks it is a swollen lymph node and wants to test it. The test will be this Tuesday. However, last week, the lump started getting smaller, and I had a strange sensation of almost a "seeping" of liquid into the breast on the same side. Now the lump is a little smaller, but for days have had a strange sensation in my breast (tingling...almost like milk being let down). Also my neck and upper arm on that same side feel tingly. What do you think?